"Commoditie" : how does the building function? -- "Firmeness" : how does the building stand up? -- "Delight" : space in architecture -- "Delight" : seeing architecture -- "Delight" : architectural acoustics, shape, and sound -- The architect : from high priest to professional -- Architecture as part of the environment -- Architecture, memory, and economics -- The invention of architecture : from caves to cities -- Egyptian architecture -- Greek architecture -- Roman architecture -- Early Christian and Byzantine architecture -- Early medieval architecture -- Gothic architecture -- Renaissance and Mannerist architecture -- Baroque and Rococo architecture -- Architecture in the Age of Enlightenment, 1720-1800 -- Architecture in the nineteenth century -- Early-twentieth-century architecture : the perfection of utility -- Late-twentieth-century architecture : a question of meaning